app/django/contrib/gis/shortcuts.py
author Sverre Rabbelier <srabbelier@gmail.com>
Thu, 05 Feb 2009 23:52:27 +0000
changeset 1230 b1b1897e4df1
parent 323 ff1a9aa48cfd
permissions -rw-r--r--
Cleanup in org_app and replace ReferenceProperty with LinkProperty Using LinkProperty allows the org to host their idea's list on Melange through the Document system, and then specify the URL of that document. This also makes it possible for the orgs to specify a document that is not hosted on Melange. Patch by: Sverre Rabbelier

import cStringIO, zipfile
from django.http import HttpResponse
from django.template import loader

def compress_kml(kml):
    "Returns compressed KMZ from the given KML string."
    kmz = cStringIO.StringIO()
    zf = zipfile.ZipFile(kmz, 'a', zipfile.ZIP_DEFLATED, False)
    zf.writestr('doc.kml', kml)
    zf.close()
    kmz.seek(0)
    return kmz.read()

def render_to_kml(*args, **kwargs):
    "Renders the response as KML (using the correct MIME type)."
    return HttpResponse(loader.render_to_string(*args, **kwargs),
                        mimetype='application/vnd.google-earth.kml+xml kml')

def render_to_kmz(*args, **kwargs):
    """
    Compresses the KML content and returns as KMZ (using the correct 
    MIME type).
    """
    return HttpResponse(compress_kml(loader.render_to_string(*args, **kwargs)),
                        mimetype='application/vnd.google-earth.kmz')


def render_to_text(*args, **kwargs):
    "Renders the response using the MIME type for plain text."
    return HttpResponse(loader.render_to_string(*args, **kwargs),
                        mimetype='text/plain')